browser.css

* {
    font-family: 'Roboto Condensed Light';
}

.wrapper {
    width: 500px;
    margin: 150px auto;
    background: rgba(0,0,0,.7);
    max-height: 600px;
}

.header {
    background: #ffcc00;
    text-align: center;
    margin-bottom: 0;
    position: relative;     
    padding: 5px;            
}

.brand {
    font-size: 22px;
    padding: 10px;
    margin: 0;
    display: inline;
}


.accordion {
    background-color: rgba(0,0,0, .6);
    
}
.accordion:nth-child(even) {
    background-color: rgba(0,0,0, .2) !important;
}
.accordion-header {
    color: #f3f3f3;
    padding: 10px;
}
.accordion-body {
    max-height: 420px;
    overflow: auto;
}
.accordion-body > ul {
    padding: 0;
    margin: 0;
}
.accordion-body > ul > li {
    padding-left: 10px;
    list-style: none;
    background: rgba(30, 30, 30, .7);
    padding: 6px;
    color: #f3f3f3;
}
.accordion-body > ul > li:nth-child(even) {
    background: rgba(50, 50, 50, .8);
}
.btn-expand {
    background: #ffcc00;
    border-radius: 2px;
    border: none;
    font-size: 12px;
    font-weight: bolder;
    padding: 5px;
    float: right;
}

.btn-enter {
    background: #22aa22;
    color: #f3f3f3;
    border-radius: 2px;
    border: none;
    font-size: 12px;
    font-weight: bold;
    padding: 5px;
    margin-right: 5px;
    float: right;
}

.btn-close {
    color: #000;
    font-size: 12px;
    background: transparent;
    font-weight: bolder;
    border: none;
    display: inline;
    position: absolute;
    text-transform: uppercase;
    top: 10px;
    right: 5px;
}

/* width */
::-webkit-scrollbar {
    width: 5px;
}

/* Track */
::-webkit-scrollbar-track {
    background: #f1f1f1; 
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: #777; 
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: #999; 
}